Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors

Most COVID-19 survivors report experiencing at least one persistent symptom after recovery, including sympathovagal imbalance. Relaxation techniques based on slow-paced breathing have proven to be beneficial for cardiovascular and respiratory dynamics in healthy subjects and patients with various di...

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Main Authors: Alejandra Margarita Sánchez-Solís, Viridiana Peláez-Hernández, Laura Mercedes Santiago-Fuentes, Guadalupe Lizzbett Luna-Rodríguez, José Javier Reyes-Lagos, Arturo Orea-Tejeda
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/25/6/874
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author Alejandra Margarita Sánchez-Solís
Viridiana Peláez-Hernández
Laura Mercedes Santiago-Fuentes
Guadalupe Lizzbett Luna-Rodríguez
José Javier Reyes-Lagos
Arturo Orea-Tejeda
author_facet Alejandra Margarita Sánchez-Solís
Viridiana Peláez-Hernández
Laura Mercedes Santiago-Fuentes
Guadalupe Lizzbett Luna-Rodríguez
José Javier Reyes-Lagos
Arturo Orea-Tejeda
author_sort Alejandra Margarita Sánchez-Solís
collection DOAJ
description Most COVID-19 survivors report experiencing at least one persistent symptom after recovery, including sympathovagal imbalance. Relaxation techniques based on slow-paced breathing have proven to be beneficial for cardiovascular and respiratory dynamics in healthy subjects and patients with various diseases. Therefore, the present study aimed to explore the cardiorespiratory dynamics by linear and nonlinear analysis of photoplethysmographic and respiratory time series on COVID-19 survivors under a psychophysiological assessment that includes slow-paced breathing. We analyzed photoplethysmographic and respiratory signals of 49 COVID-19 survivors to assess breathing rate variability (BRV), pulse rate variability (PRV), and pulse–respiration quotient (PRQ) during a psychophysiological assessment. Additionally, a comorbidity-based analysis was conducted to evaluate group changes. Our results indicate that all BRV indices significantly differed when performing slow-paced breathing. Nonlinear parameters of PRV were more appropriate for identifying changes in breathing patterns than linear indices. Furthermore, the mean and standard deviation of PRQ exhibited a significant increase while sample and fuzzy entropies decreased during diaphragmatic breathing. Thus, our findings suggest that slow-paced breathing may improve the cardiorespiratory dynamics of COVID-19 survivors in the short term by enhancing cardiorespiratory coupling via increased vagal activity.
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spelling doaj.art-45bfd5a51ddb4de7b9c6a49a77f6fc142023-11-18T10:17:39ZengMDPI AGEntropy1099-43002023-05-0125687410.3390/e25060874Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 SurvivorsAlejandra Margarita Sánchez-Solís0Viridiana Peláez-Hernández1Laura Mercedes Santiago-Fuentes2Guadalupe Lizzbett Luna-Rodríguez3José Javier Reyes-Lagos4Arturo Orea-Tejeda5School of Medicine, Universidad Autónoma del Estado de México (UAEMéx), Toluca de Lerdo 50180, MexicoCardiology Service, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas (INER), Mexico City 14080, MexicoSchool of Medicine, Universidad Autónoma del Estado de México (UAEMéx), Toluca de Lerdo 50180, MexicoCardiology Service, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas (INER), Mexico City 14080, MexicoSchool of Medicine, Universidad Autónoma del Estado de México (UAEMéx), Toluca de Lerdo 50180, MexicoCardiology Service, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas (INER), Mexico City 14080, MexicoMost COVID-19 survivors report experiencing at least one persistent symptom after recovery, including sympathovagal imbalance. Relaxation techniques based on slow-paced breathing have proven to be beneficial for cardiovascular and respiratory dynamics in healthy subjects and patients with various diseases. Therefore, the present study aimed to explore the cardiorespiratory dynamics by linear and nonlinear analysis of photoplethysmographic and respiratory time series on COVID-19 survivors under a psychophysiological assessment that includes slow-paced breathing. We analyzed photoplethysmographic and respiratory signals of 49 COVID-19 survivors to assess breathing rate variability (BRV), pulse rate variability (PRV), and pulse–respiration quotient (PRQ) during a psychophysiological assessment. Additionally, a comorbidity-based analysis was conducted to evaluate group changes. Our results indicate that all BRV indices significantly differed when performing slow-paced breathing. Nonlinear parameters of PRV were more appropriate for identifying changes in breathing patterns than linear indices. Furthermore, the mean and standard deviation of PRQ exhibited a significant increase while sample and fuzzy entropies decreased during diaphragmatic breathing. Thus, our findings suggest that slow-paced breathing may improve the cardiorespiratory dynamics of COVID-19 survivors in the short term by enhancing cardiorespiratory coupling via increased vagal activity.https://www.mdpi.com/1099-4300/25/6/874cardiorespiratory couplingpost-COVID-19 syndromeslow breathingdiaphragmatic breathingbreathing and relaxation exercisespulse–respiration quotient
spellingShingle Alejandra Margarita Sánchez-Solís
Viridiana Peláez-Hernández
Laura Mercedes Santiago-Fuentes
Guadalupe Lizzbett Luna-Rodríguez
José Javier Reyes-Lagos
Arturo Orea-Tejeda
Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors
Entropy
cardiorespiratory coupling
post-COVID-19 syndrome
slow breathing
diaphragmatic breathing
breathing and relaxation exercises
pulse–respiration quotient
title Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors
title_full Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors
title_fullStr Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors
title_full_unstemmed Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors
title_short Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors
title_sort induced relaxation enhances the cardiorespiratory dynamics in covid 19 survivors
topic cardiorespiratory coupling
post-COVID-19 syndrome
slow breathing
diaphragmatic breathing
breathing and relaxation exercises
pulse–respiration quotient
url https://www.mdpi.com/1099-4300/25/6/874
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